- PII
- S19982860S0132342325050107-1
- DOI
- 10.7868/S1998286025050107
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 51 / Issue number 5
- Pages
- 853-862
- Abstract
- The visualization of macromolecular complexes is an important task in modern bioorganic chemistry, which can be addressed using various methodological approaches. The most widely used techniques involve radioactive- and fluorescent-labeled ligands. In this study, molecular probes were developed in the form of hybrid constructs combining one of three snake toxins (α-bungarotoxin, α-cobratoxin, or neurotoxin NT-II) with the red fluorescent protein mKate2. These chimeric proteins were produced in a bacterial expression system and purified via gel filtration. Using competitive radioligand binding assay with radiolabeled α-bungarotoxin, it was demonstrated that the obtained probes exhibit high affinity for the nicotinic acetylcholine receptor of the electric organ from T, with half-maximal inhibitory concentration values in the nanomolar range. The fluorescent probes were successfully employed for the visualization of acetylcholine receptors on the surface of SH-SYSY cells.
- Keywords
- ионный канал ацетилхолиновый рецептор холинорецептор лиганд нейротоксин радиолигандный анализ флуоресцентная микроскопия
- Date of publication
- 01.05.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 4
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